Exhaust-nozzle



G. W.'--K'ELLER'. EXHAUST NOZZLE. APPLICAfION FILED sEP s. 1920.

#380,806. I Patented-June 7, 192- 1.

PATENT GEUBG-E WILLIAM KELLER, G13 PORTSMOUTH, OHIO.

. EXHAUSTNOZZLE.

nascent).

hpplicationfiled September a, 1920. Serial No. 407,904.

To all whom it may concern: I

Be it known that I, Gnoncn W. TKELLER, a citizen of the United States, residing at Portsmouth, in the county of Scioto and State of Ohio, have invented a new and useful Exhaust-Nozzle, of which the following is a specification.

This invention relates to steam exhaust nozzles of the siphon type employed in locomotive constructions for creating a draft through the fire-box and. Smokestack of the locomotive. The primary object of the invention is to provide a nozzle of this character having novel means to increase the vacuum at the base of the smoke stack to cause a more constant and even draft on the fire. V

A further object of theinvention is to provide a device of this character for increasing the vacuum at the base of the smoke stack to increase the draft on the fire.

A still further object of the invention is the provision of a guard adjacent to the exhaust end of the nozzle to guard the intake portion thereof, against cinders entering the nozzle, to'obstruct the passage of steam or smoke therethrough.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter de scribed and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, maybe made withinthe scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawing Figure 1 illustrates a longitudinal sectional view through a nozzle constructed in accordance with the present invention.

Fig. 2 illustrates a transverse sectional view taken on line 2-2 of Fig. 1.

Referring 'to the drawing in detail, the. reference character 5 designates the body portion of the nozzle the side Walls thereof tapering toward the upper extremity to provide an exhaust opening.

Formed at the lower extremity of the body portion is a circumferential flange 6 by means of whichthe nozzle will be secured within a locomotive, the flange 7 'which is formed substantially intermediate the ends of the nozzle being provided to support the screen 8, which guards the dischargeend of the nozzle agalnst cinders or other foreign matter entering the nozzle head 9.

create a vacuum within the space surround ing the nozzle 5 to draw the smoke which may collect around the nozzle 5, through the head 9 and increase the draft on the fire.

As shown, this head 9 includes a lower portion 10 which is designed to be positioned on the extreme upper end of the body 5, there being provided flanges 11 adapted to receive suitable securing means for securing the head to the body 5. Arms 12 form a part of the head 9 and are disposed in spaced relation with each other, the spaces between the arms 12 permitting the smoke and products of combustion to pass upwardly through the head 9.

The screen 8 is circular in formation, and as before stated has connection with the flange 7 in a manner to substantially house the upper extremity of the nozzle 5, the upper extremity of the housing or screen 8 however, being formed into a flange 13 adapted toengage under the plate 14 to secure the upper end of the housing against movement.

From the foregoing it is obvious that as steam exhausts through the nozzle, a vacuum I is created around the nozzle to draw' the products of combustion through the head 9 between the arms 12, and at the same time cause a suction at the extreme outer end of the head 9, thereby greatly increasing the draft on the fire.

Having thus described the invention, What is claimed as new is:

1. A steam nozzle including a body portion having the'walls thereof tapering toward its outer end, a nozzle head positioned on one end of the body portion, arms forming a part of the nozzle head to support the head in spaced relation with the body portion to provide passageways, and a guard of wire mesh material housing the upper end of the body portion, and the lower end of the nozzle to guard said passageways. v

2. A steam nozzle including a body portion having the Walls thereof tapering toward the outer end, a circumferentiz'zl flange formed on the body portion intermediate the ends thereof, the circular screen housing the upper end of the nozzle and having connection with the flange, a nozzle head supported at one end of the body portion, said nozzle head being constructed to provide a passageway between the body por- 1 tion and nozzle head, and said housing 10 adapted to guard the passageway.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two Witnesses.

GEORGE WILLIAM KELLER. Witnesses:

ORVILLE J. PURDY, EDWARD E. PETRY. 

